TagFile: rename exported functions, use CamelCase

src/SongUpdate.cxx

@@ -85,7 +85,7 @@ Song::UpdateFile(Storage &storage) noexcept
 		if (!tag_stream_scan(absolute_uri.c_str(), tag_builder))
 			return false;
 	} else {
-		if (!tag_file_scan(path_fs, tag_builder))
+		if (!ScanFileTagsWithGeneric(path_fs, tag_builder))
 			return false;
 	}
 
@@ -149,7 +149,7 @@ DetachedSong::LoadFile(Path path) noexcept
 		return false;
 
 	TagBuilder tag_builder;
-	if (!tag_file_scan(path, tag_builder))
+	if (!ScanFileTagsWithGeneric(path, tag_builder))
 		return false;
 
 	mtime = fi.GetModificationTime();

src/TagFile.cxx

@@ -81,7 +81,7 @@ public:
 };
 
 bool
-tag_file_scan(Path path_fs, TagHandler &handler) noexcept
+ScanFileTagsNoGeneric(Path path_fs, TagHandler &handler) noexcept
 {
 	assert(!path_fs.IsNull());
 
@@ -100,11 +100,11 @@ tag_file_scan(Path path_fs, TagHandler &handler) noexcept
 }
 
 bool
-tag_file_scan(Path path, TagBuilder &builder) noexcept
+ScanFileTagsWithGeneric(Path path, TagBuilder &builder) noexcept
 {
 	FullTagHandler h(builder);
 
-	if (!tag_file_scan(path, h))
+	if (!ScanFileTagsNoGeneric(path, h))
 		return false;
 
 	if (builder.empty())

src/TagFile.hxx

@@ -28,13 +28,14 @@ class TagBuilder;
 
 /**
  * Scan the tags of a song file.  Invokes matching decoder plugins,
- * but does not invoke the special "APE" and "ID3" scanners.
+ * but does not fall back to generic scanners (APE and ID3) if no tags
+ * were found (but the file was recognized).
  *
  * @return true if the file was recognized (even if no metadata was
  * found)
  */
 bool
-tag_file_scan(Path path, TagHandler &handler) noexcept;
+ScanFileTagsNoGeneric(Path path, TagHandler &handler) noexcept;
 
 /**
  * Scan the tags of a song file.  Invokes matching decoder plugins,
@@ -45,6 +46,6 @@ tag_file_scan(Path path, TagHandler &handler) noexcept;
  * found)
  */
 bool
-tag_file_scan(Path path, TagBuilder &builder) noexcept;
+ScanFileTagsWithGeneric(Path path, TagBuilder &builder) noexcept;
 
 #endif

src/command/FileCommands.cxx

@@ -167,7 +167,7 @@ static CommandResult
 read_file_comments(Response &r, const Path path_fs)
 {
 	PrintCommentHandler h(r);
-	if (!tag_file_scan(path_fs, h)) {
+	if (!ScanFileTagsNoGeneric(path_fs, h)) {
 		r.Error(ACK_ERROR_NO_EXIST, "Failed to load file");
 		return CommandResult::ERROR;
 	}

src/playlist/plugins/EmbeddedCuePlaylistPlugin.cxx

@@ -99,7 +99,7 @@ embcue_playlist_open_uri(const char *uri,
 	const auto path_fs = AllocatedPath::FromUTF8Throw(uri);
 
 	ExtractCuesheetTagHandler extract_cuesheet;
-	tag_file_scan(path_fs, extract_cuesheet);
+	ScanFileTagsNoGeneric(path_fs, extract_cuesheet);
 	if (extract_cuesheet.cuesheet.empty())
 		ScanGenericTags(path_fs, extract_cuesheet);